Work stool



FIG. 1 is a top perspective view of the work stool showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines showing castors are for the purpose of illustrating environmental structure and unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a work stool, as shown and described. 